plugins/bmp/BMPMetadata.java

0N/A/*
2362N/A * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation.  Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/Apackage com.sun.imageio.plugins.bmp;
0N/A
0N/Aimport java.io.UnsupportedEncodingException;
0N/Aimport java.util.ArrayList;
0N/Aimport java.util.Iterator;
0N/Aimport java.util.List;
0N/Aimport javax.imageio.ImageTypeSpecifier;
0N/Aimport javax.imageio.metadata.IIOMetadata;
0N/Aimport javax.imageio.metadata.IIOMetadataNode;
0N/Aimport javax.imageio.metadata.IIOMetadataFormat;
0N/Aimport javax.imageio.metadata.IIOMetadataFormatImpl;
0N/Aimport org.w3c.dom.Node;
0N/Aimport com.sun.imageio.plugins.common.I18N;
0N/A
0N/Aimport com.sun.imageio.plugins.common.ImageUtil;
0N/A
0N/Apublic class BMPMetadata extends IIOMetadata implements BMPConstants {
0N/A    public static final String nativeMetadataFormatName =
0N/A        "javax_imageio_bmp_1.0";
0N/A
0N/A    // Fields for Image Descriptor
0N/A    public String bmpVersion;
0N/A    public int width ;
0N/A    public int height;
0N/A    public short bitsPerPixel;
0N/A    public int compression;
0N/A    public int imageSize;
0N/A
0N/A    // Fields for PixelsPerMeter
0N/A    public int xPixelsPerMeter;
0N/A    public int yPixelsPerMeter;
0N/A
0N/A    public int colorsUsed;
0N/A    public int colorsImportant;
0N/A
0N/A    // Fields for BI_BITFIELDS compression(Mask)
0N/A    public int redMask;
0N/A    public int greenMask;
0N/A    public int blueMask;
0N/A    public int alphaMask;
0N/A
0N/A    public int colorSpace;
0N/A
0N/A    // Fields for CIE XYZ for the LCS_CALIBRATED_RGB color space
0N/A    public double redX;
0N/A    public double redY;
0N/A    public double redZ;
0N/A    public double greenX;
0N/A    public double greenY;
0N/A    public double greenZ;
0N/A    public double blueX;
0N/A    public double blueY;
0N/A    public double blueZ;
0N/A
0N/A    // Fields for Gamma values for the LCS_CALIBRATED_RGB color space
0N/A    public int gammaRed;
0N/A    public int gammaGreen;
0N/A    public int gammaBlue;
0N/A
0N/A    public int intent;
0N/A
0N/A    // Fields for the Palette and Entries
0N/A    public byte[] palette = null;
0N/A    public int paletteSize;
0N/A    public int red;
0N/A    public int green;
0N/A    public int blue;
0N/A
0N/A    // Fields from CommentExtension
0N/A    // List of byte[]
0N/A    public List comments = null; // new ArrayList();
0N/A
0N/A    public BMPMetadata() {
0N/A        super(true,
0N/A              nativeMetadataFormatName,
0N/A              "com.sun.imageio.plugins.bmp.BMPMetadataFormat",
0N/A              null, null);
0N/A    }
0N/A
0N/A    public boolean isReadOnly() {
0N/A        return true;
0N/A    }
0N/A
0N/A    public Node getAsTree(String formatName) {
0N/A        if (formatName.equals(nativeMetadataFormatName)) {
0N/A            return getNativeTree();
0N/A        } else if (formatName.equals
0N/A                   (IIOMetadataFormatImpl.standardMetadataFormatName)) {
0N/A            return getStandardTree();
0N/A        } else {
0N/A            throw new IllegalArgumentException(I18N.getString("BMPMetadata0"));
0N/A        }
0N/A    }
0N/A
0N/A    private String toISO8859(byte[] data) {
0N/A        try {
0N/A            return new String(data, "ISO-8859-1");
0N/A        } catch (UnsupportedEncodingException e) {
0N/A            return "";
0N/A        }
0N/A    }
0N/A
0N/A    private Node getNativeTree() {
0N/A        IIOMetadataNode root =
0N/A            new IIOMetadataNode(nativeMetadataFormatName);
0N/A
0N/A        addChildNode(root, "BMPVersion", bmpVersion);
0N/A        addChildNode(root, "Width", new Integer(width));
0N/A        addChildNode(root, "Height", new Integer(height));
0N/A        addChildNode(root, "BitsPerPixel", new Short(bitsPerPixel));
0N/A        addChildNode(root, "Compression", new Integer(compression));
0N/A        addChildNode(root, "ImageSize", new Integer(imageSize));
0N/A
0N/A        IIOMetadataNode node = addChildNode(root, "PixelsPerMeter", null);
0N/A        addChildNode(node, "X", new Integer(xPixelsPerMeter));
0N/A        addChildNode(node, "Y", new Integer(yPixelsPerMeter));
0N/A
0N/A        addChildNode(root, "ColorsUsed", new Integer(colorsUsed));
0N/A        addChildNode(root, "ColorsImportant", new Integer(colorsImportant));
0N/A
0N/A        int version = 0;
0N/A        for (int i = 0; i < bmpVersion.length(); i++)
0N/A            if (Character.isDigit(bmpVersion.charAt(i)))
0N/A                version = bmpVersion.charAt(i) -'0';
0N/A
0N/A        if (version >= 4) {
0N/A            node = addChildNode(root, "Mask", null);
0N/A            addChildNode(node, "Red", new Integer(redMask));
0N/A            addChildNode(node, "Green", new Integer(greenMask));
0N/A            addChildNode(node, "Blue", new Integer(blueMask));
0N/A            addChildNode(node, "Alpha", new Integer(alphaMask));
0N/A
0N/A            addChildNode(root, "ColorSpaceType", new Integer(colorSpace));
0N/A
0N/A            node = addChildNode(root, "CIEXYZEndPoints", null);
0N/A            addXYZPoints(node, "Red", redX, redY, redZ);
0N/A            addXYZPoints(node, "Green", greenX, greenY, greenZ);
0N/A            addXYZPoints(node, "Blue", blueX, blueY, blueZ);
0N/A
0N/A            node = addChildNode(root, "Intent", new Integer(intent));
0N/A        }
0N/A
0N/A        // Palette
0N/A        if ((palette != null) && (paletteSize > 0)) {
0N/A            node = addChildNode(root, "Palette", null);
0N/A            int numComps = palette.length / paletteSize;
0N/A
0N/A            for (int i = 0, j = 0; i < paletteSize; i++) {
0N/A                IIOMetadataNode entry =
0N/A                    addChildNode(node, "PaletteEntry", null);
0N/A                red = palette[j++] & 0xff;
0N/A                green = palette[j++] & 0xff;
0N/A                blue = palette[j++] & 0xff;
0N/A                addChildNode(entry, "Red", new Byte((byte)red));
0N/A                addChildNode(entry, "Green", new Byte((byte)green));
0N/A                addChildNode(entry, "Blue", new Byte((byte)blue));
0N/A                if (numComps == 4)
0N/A                    addChildNode(entry, "Alpha",
0N/A                                 new Byte((byte)(palette[j++] & 0xff)));
0N/A            }
0N/A        }
0N/A
0N/A        return root;
0N/A    }
0N/A
0N/A    // Standard tree node methods
0N/A    protected IIOMetadataNode getStandardChromaNode() {
0N/A
0N/A        if ((palette != null) && (paletteSize > 0)) {
0N/A            IIOMetadataNode node = new IIOMetadataNode("Chroma");
0N/A            IIOMetadataNode subNode = new IIOMetadataNode("Palette");
0N/A            int numComps = palette.length / paletteSize;
0N/A            subNode.setAttribute("value", "" + numComps);
0N/A
0N/A            for (int i = 0, j = 0; i < paletteSize; i++) {
0N/A                IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
0N/A                subNode1.setAttribute("index", ""+i);
0N/A                subNode1.setAttribute("red", "" + palette[j++]);
0N/A                subNode1.setAttribute("green", "" + palette[j++]);
0N/A                subNode1.setAttribute("blue", "" + palette[j++]);
0N/A                if (numComps == 4 && palette[j] != 0)
0N/A                    subNode1.setAttribute("alpha", "" + palette[j++]);
0N/A                subNode.appendChild(subNode1);
0N/A            }
0N/A            node.appendChild(subNode);
0N/A            return node;
0N/A        }
0N/A
0N/A        return null;
0N/A    }
0N/A
0N/A    protected IIOMetadataNode getStandardCompressionNode() {
0N/A        IIOMetadataNode node = new IIOMetadataNode("Compression");
0N/A
0N/A        // CompressionTypeName
0N/A        IIOMetadataNode subNode = new IIOMetadataNode("CompressionTypeName");
0N/A        subNode.setAttribute("value", compressionTypeNames[compression]);
0N/A        node.appendChild(subNode);
0N/A        return node;
0N/A    }
0N/A
0N/A    protected IIOMetadataNode getStandardDataNode() {
0N/A        IIOMetadataNode node = new IIOMetadataNode("Data");
0N/A
0N/A        String bits = "";
0N/A        if (bitsPerPixel == 24)
0N/A            bits = "8 8 8 ";
0N/A        else if (bitsPerPixel == 16 || bitsPerPixel == 32) {
0N/A            bits = "" + countBits(redMask) + " " + countBits(greenMask) +
0N/A                  countBits(blueMask) + "" + countBits(alphaMask);
0N/A        }
0N/A
0N/A        IIOMetadataNode subNode = new IIOMetadataNode("BitsPerSample");
0N/A        subNode.setAttribute("value", bits);
0N/A        node.appendChild(subNode);
0N/A
0N/A        return node;
0N/A    }
0N/A
0N/A    protected IIOMetadataNode getStandardDimensionNode() {
0N/A        if (yPixelsPerMeter > 0.0F && xPixelsPerMeter > 0.0F) {
0N/A            IIOMetadataNode node = new IIOMetadataNode("Dimension");
0N/A            float ratio = yPixelsPerMeter / xPixelsPerMeter;
0N/A            IIOMetadataNode subNode = new IIOMetadataNode("PixelAspectRatio");
0N/A            subNode.setAttribute("value", "" + ratio);
0N/A            node.appendChild(subNode);
0N/A
0N/A            subNode = new IIOMetadataNode("HorizontalPhysicalPixelSpacing");
0N/A            subNode.setAttribute("value", "" + (1 / xPixelsPerMeter * 1000));
0N/A            node.appendChild(subNode);
0N/A
0N/A            subNode = new IIOMetadataNode("VerticalPhysicalPixelSpacing");
0N/A            subNode.setAttribute("value", "" + (1 / yPixelsPerMeter * 1000));
0N/A            node.appendChild(subNode);
0N/A
0N/A            return node;
0N/A        }
0N/A        return null;
0N/A    }
0N/A
0N/A    public void setFromTree(String formatName, Node root) {
0N/A        throw new IllegalStateException(I18N.getString("BMPMetadata1"));
0N/A    }
0N/A
0N/A    public void mergeTree(String formatName, Node root) {
0N/A        throw new IllegalStateException(I18N.getString("BMPMetadata1"));
0N/A    }
0N/A
0N/A    public void reset() {
0N/A        throw new IllegalStateException(I18N.getString("BMPMetadata1"));
0N/A    }
0N/A
0N/A    private String countBits(int num) {
0N/A        int count = 0;
0N/A        while(num > 0) {
0N/A            if ((num & 1) == 1)
0N/A                count++;
0N/A            num >>>= 1;
0N/A        }
0N/A
0N/A        return count == 0 ? "" : "" + count;
0N/A    }
0N/A
0N/A    private void addXYZPoints(IIOMetadataNode root, String name, double x, double y, double z) {
0N/A        IIOMetadataNode node = addChildNode(root, name, null);
0N/A        addChildNode(node, "X", new Double(x));
0N/A        addChildNode(node, "Y", new Double(y));
0N/A        addChildNode(node, "Z", new Double(z));
0N/A    }
0N/A
0N/A    private IIOMetadataNode addChildNode(IIOMetadataNode root,
0N/A                                         String name,
0N/A                                         Object object) {
0N/A        IIOMetadataNode child = new IIOMetadataNode(name);
0N/A        if (object != null) {
0N/A            child.setUserObject(object);
0N/A            child.setNodeValue(ImageUtil.convertObjectToString(object));
0N/A        }
0N/A        root.appendChild(child);
0N/A        return child;
0N/A    }
0N/A}